778 is what percent of 2558 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 2558 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 2558, so we can write it down as 100%=2558.
4. We know, that x% equals 778 of the output value, so we can write it down as x%=778.
5. Now we have two simple equations:
1) 100%=2558
2) x%=778
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=2558/778
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 778 is what percent of 2558

100%/x%=2558/778
(100/x)*x=(2558/778)*x       - we multiply both sides of the equation by x
100=3.2879177377892*x       - we divide both sides of the equation by (3.2879177377892) to get x
100/3.2879177377892=x
30.414386239249=x
x=30.414386239249

now we have:
778 is 30.414386239249% of 2558